How to handle language specific dynamic delivery with Android App bundle?

Emil Alipiev 271

I have some json files as embedded resources in my app. Those are like data_en.json, data_de.json, data_fr.json.
When I publish my app as app bundle to google play store, is there a way to tell google those are languages specific for 4 languages that my app supports.
So if the french user downloads my app, he only downloads data_fr.json and english user download data_en.json as it is called dynamic delivery.
I have seen this is not even handled automatically for resx files for xamarin applications. So my question is how google does that dynamic delivery and how we can make google to distinguish those files based on language?

JarvanZhang 23,951 Reputation points

2020-11-20T08:46:53.367+00:00

Hi, EmilAlipiev-5934. Google store doesn't provide the function to select configuration when downloading the application. We can inform the user to select the settings when first opening the application. And it'll provide a better user experience to be able to switch different languages when using the app.
Emil Alipiev 271 Reputation points

2020-11-20T13:09:17.577+00:00

no, this is not what i mean. what i mean is for example, if you have values-fr and values-en folders where you will typically store Android translations, Google play store automatically handles it for you. So if some from france with french phone downloads your app, appbundle he downloads has only values-fr, he doesnt receive from google values-en.
But in Xamarin we work with resx files in .net standard as translations and google doesnt know it. so if i have resx.fr and resx.en in my xamarin.forms project, my french user downloads both translations from google play store. In this case app bunle dynamic delivery doesnt work for language specific.
JarvanZhang 23,951 Reputation points

2020-11-23T09:01:43.563+00:00

Google play store doesn't help to select the language when downloading the application. The language of the application is decided by the system of the device where the application is installed.
Emil Alipiev 271 Reputation points

2020-11-23T16:42:10.447+00:00

i didnt say that user chooses language in google play store. Google handles it automatically based on the system language. But if it is a xamarin app, it doesnt work. Resx files are delivered by google completely not based on the system language. When you download the app, you download all language translations if you build aab with xamarin. But if you build with Kotlin or Java, you only get those resources based on your system language
JarvanZhang 23,951 Reputation points

2020-11-25T09:28:09.527+00:00

As you described, Google play support dynamic delivery. Sorry for my mistake. Please make sure the release file is the aab format. To enable support for Android App Bundles, you’ll need to opt-in to the bundle value of the Android Package Format property within your Android options.